dujuncheng/crm-api: IPPBX集成各个CRM厂商的API

dujunchen cee8053a90 crm ZOHO and Vtiger		4 月之前
..
call.go	cee8053a90 crm ZOHO and Vtiger	4 月之前
channel.go	cee8053a90 crm ZOHO and Vtiger	4 月之前
database.go	cee8053a90 crm ZOHO and Vtiger	4 月之前
extension.go	cee8053a90 crm ZOHO and Vtiger	4 月之前
sip.go	cee8053a90 crm ZOHO and Vtiger	4 月之前